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2402857f3f
Profiling the profiler showed a lot of time spent allocating memory for the
frame-address strings, almost half the time of `StreamSamplesToJSON`!
Using an "Auto" string will prevent these allocations in most cases.
Also removed the `printf("0x%llx")`, instead just appending "0x" and an hex-
formatted number with `AppendInt()` (which handles 32- and 64-bit numbers
separately, so there is no more needs to do a double-cast to avoid sign
extensions -- There is still a double cast, but a no-op one to fix the type to
either `uint32_t` or `uint64_t`).
Using an Auto string for nearby frame labels as well.
Differential Revision: https://phabricator.services.mozilla.com/D45841
--HG--
extra : moz-landing-system : lando
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| .. | ||
| bloatview | ||
| browsertime | ||
| clang-tidy | ||
| code-coverage | ||
| compare-locales | ||
| coverity | ||
| crashreporter | ||
| docs | ||
| fuzzing | ||
| infer | ||
| jprof | ||
| leak-gauge | ||
| lint | ||
| performance | ||
| power | ||
| profiler | ||
| quitter | ||
| rb | ||
| rewriting | ||
| tryselect | ||
| update-packaging | ||
| update-verify | ||
| vcs | ||
| mach_commands.py | ||
| moz.build | ||